In GTA IV, the Intruder, manufactured by Karin, is given a much more sportier higher class design, although the overall performance of the vehicle remains the same. The Intruder resembles the 2002-2006 Infiniti Q45 but the rear seems based off a 1996 or 1997 Infiniti I30.

Performance

In GTA San Andreas, the car's acceleration and speed are highly lacking, despite the intimidating growl of its engine (likely at least a V6, judging by the size of the engine compartment). Being rear-drive helps, but the dismal torque is barely enough to climb a steep hill. Handling and braking are surprisingly agile, and seem wasted on the weak engine.

In GTA IV, Intruder returns to the scene with a 4.3L V8, coupled to a 5 speed gearbox in a RWD configuration. Acceleration is below average (0-100 km - 10.7 seconds) for a large four-door sedan, its top speed is quite low, on-par with the EmperorLokus (140 km/h, 87 mph). Handling is very good, as the Intruder has just enough oversteer to power through the bends, while not skidding off the road. The suspension is rather firm, which aides it's cornering ability. Braking is average, and ABS is standard on all models. Crash deformation is acceptable, though not great; and the engine build quality is about the same, it can survive a few impacts before failing/catching fire. Overall, the GTA IV Intruder is best suited for city cruising, not highway chases.

Variants

In GTA IV, there is a special variant model of the Intruder driven by the Triads. Badged as the Intruder VX, changes include a special candy red paint job, a bodykit with side skirts and a chin spoiler, as well as a yellow Chinese knotting attached to the rear mirror that denotes the car's association with the Triads. The visual modifications of this variant are based on the Junction Produce Infiniti Q45 bodykit.

Similar, in GTA IV, a uniquely dark blue Intruder may be obtainable when it is requested by Stevie. Parked in Rotterdam Hill, at Asparagus Avenue, near the Liberty City Transport Authority building, the car constantly respawns in the same spot until it is delivered to S&M Auto Sales, so the car may be taken and stored at a safehouse before another is sent to S&M Auto Sales.

Modifications (GTA San Andreas)

The Intruder can be modified at a TransFender, which offers a myriad of customizations for the car. The Intruder is one of only a handful of vehicles with all available options (not to be confused with available parts) open.